DeleteUser

Use the DeleteUser operation to delete the Amazon QuickSight user that is associated with the identity of the IAM user or role that's making the call. The IAM user isn't deleted as a result of this call. To use this operation, you need the ID of the user that you want to delete. You can also use the ListUsers operation to list all users and their corresponding user IDs.

Following is an example AWS CLI command for this operation.

aws quicksight delete-user 
    --user-name USERNAME 
    --aws-account-id AWSACCOUNTID 
    --namespace default

For more information about the DeleteUser operation, see DeleteUser in the Amazon QuickSight API Reference.